Support got back on me for the 2W problem - with a very helpful answer! You can adjust the lower threshold that is applied for the 2W by the command
M2000 L24 Pxx
where XX is between 0-255. It defaults to P40, i.e. 15.7%.
As soon as I have time the next days I’ll try this out with the value that seems to be better for my 2W module, i.e. P26 = ~10%, perhaps I’ll compare it to P28 = ~11%.
Will keep you posted! But really glad that Snapmaker implemented it adjustable!!!